Ship construction.



PATENTED MAR. 19, 1907 G. W. MAYTHAM. SHIP CONSTRUCTION. APPLIO'ATION FILED JAN. 19, 1905.

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u m, w w 8% D 2 m K WW Am 1 HUM .e um mmm fig] mm 3 i PM Gmm n wd M w W my m No. 847,677. a PATEN'IED MAR. 19, 1.927 G. W. MAYTHAM.

SHIP oonsmuc'rxom.

APPLId'ATIoN FILED 1,517.19, 1905.

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M 7 1' UNIX/4 if I a Zr? 7 I 0 To all whom itneay concern:

UNITED STATES PAT r ()FFICE. \p

' GEORGE MAYTHAM, OFVBUFFALO, NEW YORK.

' Si- HP cousr uo'rion. i

. Be it known that I, GEORGE W. MAYTHAM, a citizenv of' the United States, residing at Bufi'alo, in the county'orErie and State of New York, have invented-pertain new and useful Improvement'sm Ship Constructions,

of which the following is a specification This invention relates-to ship construe tions; and its primary object is to provide-a l ght and durable vessel having a series or hoppers forming the bottom of the hold with transverse bulkheads arranged between two contiguous hoppersatintervals in the length oftheship.

Other obj ectsare'toprovide diagonal framing to support the inclined trout and rear walls of the several hoppers and to rigidly of the vessel, to provide a ship in which the and brace the sides and the top and bottom brace upper ends of said walls to the deck framin also serves to prevent the shifting of grain w en carried as a cargo, and to rigidly rangement, and combination of parts to be connect the, diagonal framing with the center keelson and the bulkheads at points where the latter are used. l

With these and other objects in view my invention consists in the construction, ar-

hereinafter-described, and particularly pointed out in the appended claims.

In the drawings, Figure 1 isa longitudinal sectional elevation of a shi constructed according t9 my invention. ig. 2is a horizontal section taken on line to w, Fig. 1. Fig. 3

is an enlarged horizontal section taken on line w m, Fig. 2. Fig.4 is a transverse section taken on line 'y '31, Fig. 3. Fig. 5 is a longitudinal vertical section of a-portion of a ship, showing myv invention in slightly-modified form. Fig. 6 is a transverse section taken on linezz, Fig. 5. I

Referring to the drawing; in, detaihlike, letters of reference refer to li e 'partsinthe sev- The reference-numeral 1 represents the hull of the vessel, comprising the sides 2, bottom 3, and deck 4, the sides curving .to meet.

at the bow and aft, as is common. The hull is provided with the usual compartments fore and aft forthe crew and for engine and boilers, respectively.

A water-ti ht transverse bulkhead 5 is provided near t e front end of the shi to separate the crews compartment from t e cargospace, and a similar bulkhead 6 is arranged to separate the cargo-space from the engine and boiler rooms.

Speciiication'of Letters Patent. Application. madam 19,1965. Serial rt. 241,900.

Patented March 19, 1907.

Within the hull I provide a series. of hoppers7, each comprising longitudinal inclined side walls 8, a transverse inclined front wall 9, and a transverse inclined rear walllO, each inclinedwall having at its lower end a vertical portion 11. Each hopper has a bottom 12, which is supported on the center keelson 13 and side kee sons 14.

3115 designates diagonal or'inclined stays 01' bars which extend from the bottom of the hull tothedeck thereof. These .bars are arthe upper ends'thereof being likewise secured to the deck-framing. The front and rear transverse inclined Walls of the ho pers are ranged in pairs and cross each other, as at 16, l

supported by and riveted to sai inclined bars and serve with the latter to securely tie ofthe hull together, thus forming an exceedin ly light yet rigid construction.

etweenthe'sides of the hull and the sides and bottom ofthe hoppersa water-ballast com artment 17 is provided.

T e upper ends of the inclined sides of the hopper are connected to the sides of the hull by longitudinally-and horizontally disposed open plates 18. Said inclined sides are suported by and riveted to inclined supportinghars 19, which are connected to the transverse framing 20 by bilge pieces or knees 21 andthe tie-bars 22. v

. I also provide the ship with a number of bulkheads23, which I arrange between" the hoppers, so that the upper ends of the adja cent walls of such hoppers may be riveted to the bulkhead.

, Ah inolined longitudinal wall 24 surmounts each of the open plates 18, to which they are secured, and at their upper ends these Walls are connected to the si es of the ship, formin in efiect, a continuation of the inclined si es of the ho pers and serving to close the upper ends 0 thewater-ballast comipalrli-p Directly above the centerof each hopper a hatchway26 isrprovided, which allows the leg ofan elevator to be lowered directly into the hopper-bottom, and as the-gram tends to move toward the center of the hopper thea ship can be quickly and conveniently unloaded. I

IIO

I the deck-framing, whi e the ends are riveted to the upper ends of the brace-bars, each plate lying between one-pair of brace-bars.

At oints where the bulkheads 23 stand centra y between the brace-bars said shiftingplates are formed in two pieces,with adjacent ends secured to opposite sides of said bulkheads. Above the oints where the bracebars cross each ot er I provide shiftinglates 28, which are secured to said-bracebars in a manner similar to the shiftingplates 27.

At the upperends of the space between the hop ers, which form continuations of the Waterallast compartment, I connect the diagonal stays or bars by tie-plates 29, and at the lower ends of said spaces tie-plates 30 brace the diagonal stays or bars to the keelsons. At polnts Where the bulkheads 23 stand between the diagonal brace-bars the tie-plates 29' are divided and connect the said bars with thebulkheads.

In the modification shown in Figs. 5 and 6 diagonal stays or bars 31 extend from the top of two adjacent transverse inclined walls of the hoppers to the deck, while separate bars 32 extend from the lower ends of these stays or bars to the keelsons. The bars 32 are heavier than the stays or bars 31, since they serve to support the transverse walls of the hopper in addition to acting as braces, while ars 31 serve simply to brace the structure.

Having thus described my invention, what I claim is v 1. A 'shi having a series of hoppers in its hold and iagonal bars extending from the bottom of the hold to the deck on which the inclined sides of .the hop ers are supported, said bars being arranged bars of each directions.

2. A ship havin a series of hoppers in its hold, and diagonal bars extending from the bottom to the top of the hoppersand being pair being inclined in opposite in pairs and the connected together at the upper ends of two adjacent hoppers.

' 3. A shiphaving a series of hoppers, a hatchway'arranged over each hopper, and diagonal bars extending from the upper end of two adjacent hoppers to the deck, said bars being. secured to the deck between said hatchways. V

4. A ship having .a series of hoppers, a hatchway arranged over the center of each hopper, and diagonal bars connected to the upper end of two adjacent hoppers and extendin to the deck for connection near the sides 0 two adjacent hatchwa'ysh 5. A ship having diverging bars connected together and to the deck,-and a shiftingplate secured to the separated ends of said bars.

6. A ship having diverging bars connected together and to the deck, a shifting-plate secured to the separated ends of said bars, and a shifting-plate secured to the connected ends of said bars.

7 A ship divided by transverse bulkheads into a number of cargo-compartments and having one or more hoppers in the bottomof each compartment, diagonal bars extending from the bottom of the hoppers along the front and rear inclined Walls of the latter to the deck and being connected together at the upper ends of said inclined walls, and a hatchway in the deck above each hopper.

8. A ship having a series of hoppers in the bottom of its hold, a hatchway centrally over each hopper, and dia onal bars on which the inclined walls of said oppers are supported,

said bars extending from the bottom of the hold to the deck and having their upper ends secured to the deck between said hatchways. .9. A ship having diagonal bars arranged in pairs and extendlng from top to bottom in ghe hold, and shifting-plates secured to said ars.

In testimony whereof I have aflixed my signature in the presence of two subscribing GEORGE W- MAYTHAM. Witnesses:

CHAS. F. BURKHART, M. SEWERT.

witnesses, 

